One spring we were driving on Interstate 80 heading back home when we got caught in a storm in Wyoming (Good old Wyoming for those snow storms!). The storm wasn't bad, but a semi-truck had jack-knifed, flipped over and the freeway was closed. We were stuck on the freeway with nowhere to go. We had to sleep through the night in our car right in the lanes of the freeway. We were so glad we brought a few emergencies supplies with us, like blankets, food, and drinks, but honestly, we didn't have a lot more than that, other than the usual chains, battery cables. etc. Another time we avoided a summer storm but drove through the next day and saw a lot of damage.
Suddenly, an emergency car kit becomes a necessity no matter what season it is!!